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* [f2fs-dev] [PATCH 1/2] f2fs: do not select same victim right again
@ 2019-09-09  1:25 Jaegeuk Kim
  2019-09-09  1:25 ` [f2fs-dev] [PATCH 2/2] f2fs: avoid infinite GC loop due to stale atomic files Jaegeuk Kim
  2019-09-09  2:56 ` [f2fs-dev] [PATCH 1/2] f2fs: do not select same victim right again Chao Yu
  0 siblings, 2 replies; 32+ messages in thread
From: Jaegeuk Kim @ 2019-09-09  1:25 UTC (permalink / raw)
  To: linux-kernel, linux-f2fs-devel; +Cc: Jaegeuk Kim

GC must avoid select the same victim again.

Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
---
 fs/f2fs/gc.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/fs/f2fs/gc.c b/fs/f2fs/gc.c
index e88f98ddf396..15ca8bbb0b22 100644
--- a/fs/f2fs/gc.c
+++ b/fs/f2fs/gc.c
@@ -274,6 +274,9 @@ static unsigned int get_cb_cost(struct f2fs_sb_info *sbi, unsigned int segno)
 static inline unsigned int get_gc_cost(struct f2fs_sb_info *sbi,
 			unsigned int segno, struct victim_sel_policy *p)
 {
+	if (sbi->cur_victim_sec == GET_SEC_FROM_SEG(sbi, segno))
+		return UINT_MAX;
+
 	if (p->alloc_mode == SSR)
 		return get_seg_entry(sbi, segno)->ckpt_valid_blocks;
 
@@ -1326,9 +1329,6 @@ int f2fs_gc(struct f2fs_sb_info *sbi, bool sync,
 		round++;
 	}
 
-	if (gc_type == FG_GC)
-		sbi->cur_victim_sec = NULL_SEGNO;
-
 	if (sync)
 		goto stop;
 
-- 
2.19.0.605.g01d371f741-goog



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^ permalink raw reply	[flat|nested] 32+ messages in thread

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Thread overview: 32+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2019-09-09  1:25 [f2fs-dev] [PATCH 1/2] f2fs: do not select same victim right again Jaegeuk Kim
2019-09-09  1:25 ` [f2fs-dev] [PATCH 2/2] f2fs: avoid infinite GC loop due to stale atomic files Jaegeuk Kim
2019-09-09  3:03   ` Chao Yu
2019-09-09  7:30     ` Jaegeuk Kim
2019-09-09  7:54       ` Chao Yu
2019-09-09  8:01         ` Jaegeuk Kim
2019-09-09  8:05           ` Chao Yu
2019-09-09  8:21             ` Jaegeuk Kim
2019-09-09  8:27               ` Chao Yu
2019-09-09  8:38                 ` Jaegeuk Kim
2019-09-09  8:44                   ` Jaegeuk Kim
2019-09-09 11:26                   ` Chao Yu
2019-09-09 14:34                     ` Jaegeuk Kim
2019-09-10  0:59                       ` Chao Yu
2019-09-10 11:58                         ` Jaegeuk Kim
2019-09-10 12:04                           ` Chao Yu
2019-09-10 12:09                             ` Jaegeuk Kim
2019-09-16  1:15                               ` Chao Yu
2019-09-09  2:56 ` [f2fs-dev] [PATCH 1/2] f2fs: do not select same victim right again Chao Yu
2019-09-09  8:06   ` Jaegeuk Kim
2019-09-09 11:32     ` Chao Yu
2019-09-09 12:04       ` Jaegeuk Kim
2019-09-16  1:22         ` Chao Yu
2019-09-16 15:37           ` Jaegeuk Kim
2019-09-17  1:42             ` Chao Yu
2019-09-17 20:55               ` Jaegeuk Kim
2019-09-18  1:43                 ` Chao Yu
2019-09-18  3:12                   ` Jaegeuk Kim
2019-09-18  3:26                     ` Chao Yu
2019-09-18 16:47                       ` Jaegeuk Kim
2019-09-19  0:53                         ` Chao Yu
2019-09-19 17:11                           ` Jaegeuk Kim

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